genode/repos/base-nova/ports/nova.hash
Alexander Boettcher 5c27993884 nova: transfer guest fpu state via utcb
instead via the hardware registers of the FPU. On Genode all components and
so VMMs are built such, that the compiler may generate optimized code by
using the FPU at any time. We had to make sure to save the
FPU state as early as possible before the VMM component touches the FPU,
to avoid corrupting & losing guest FPU state. This caused headache again
and again. To avoid the uncertainty, we remove this feature and explicitly
transfer the FPU state via the UTCB.
2023-09-29 12:21:04 +02:00

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a9f11fdc132f027ed1d58da86fe39679da98699c